{"id":"CVE-2026-54241","title":"libde265 is an open source implementation of the h.265 video codec","summary":"libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit arithmetic to calculate the sample adaptive offset input-buffer size, allowing a crafted HEVC stream with large dimensions and …","severity":"high","cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H","cwe":["CWE-122","CWE-190"],"vendor":"strukturag","product":"libde265","affected":["libde265 < 1.1.1"],"published":"2026-09-11","updated":"2026-09-14","sourceUpdated":"2026-09-14T17:17:47.210","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54241","references":[{"url":"https://github.com/strukturag/libde265/security/advisories/GHSA-j2qq-x2xq-g9wr","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-14T16:15:17.200716Z"},"epss":0.00238,"epssPercentile":0.15166,"ingestedAt":"2026-09-14T11:11:19.877Z","slug":"CVE-2026-54241","body":"## Overview\n\nlibde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit arithmetic to calculate the sample adaptive offset input-buffer size, allowing a crafted HEVC stream with large dimensions and 16-bit luma samples to cause an integer overflow, an undersized allocation, and an out-of-bounds heap read that may expose heap data in decoded output or crash the decoder. Version 1.1.1 contains a patch.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}